package com.baldgroup.addressbook.config;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Create By  @林俊杰
 * 2020/4/23 23:56
 *
 * @version 1.0
 */
public class LoginHandlerInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //登录成功后,应有用户的session;
        Object loginUser  = request.getSession().getAttribute("loginUser");

        if(loginUser == null){
            request.setAttribute("msg","请先登录");
            request.getRequestDispatcher("/index.html").forward(request,response);
            return false;
        }else {
            return true;
        }

    }


}
